I have....1 Kicker L7 D4 06 sub, Kicker ZX750.1 mono amp for sub, Kicker 08KS6930 6x9 3-WAY, KICKER KS502 5.25" Component speakers and 1 KICKER ZX350.4 AMPLIFIER 4-CHANNEL . Would the ZX750.1 be to much for that one sub ? Would I need another battery to run both Amps ? I haven't gotten a new head unit yet. I have been told by the stereo shop here that I would need another battery, plus he wanted to charge me $1,100 just to put it all in. That's with another battery and wire !!!